Sodium hydride → HCID 59157957, compound

HRID 448797Notes

Reaction equation

HRID 448797 reaction equation
[CH2:1]([O:3][P:4]([O-:8])[O:5][CH2:6][CH3:7])[CH3:2].[H-].[Na+].C([C:13]1[C:22]2[C:17](=[CH:18][C:19]([CH2:23]Br)=[CH:20][CH:21]=2)[C:16](CC)=[C:15]([C:27](P(=O)([O-])[O-])([F:29])[F:28])[C:14]=1[Br:34])C>C1(C)C=CC=CC=1>[Br:34][C:14]1[CH:13]=[C:22]2[C:17](=[CH:16][C:15]=1[C:27]([P:4]([O:5][CH2:6][CH3:7])([O:3][CH2:1][CH3:2])=[O:8])([F:28])[F:29])[CH:18]=[C:19]([CH2:23][P:4](=[O:8])([O:5][CH2:6][CH3:7])[O:3][CH2:1][CH3:2])[CH:20]=[CH:21]2

Participants

5

Procedure

To a solution of diethylphosphite (0.22 mL) in toluene (5 mL) at 0° C. was added NaH (60% in mineral oil, 20 mg). The reaction mixture was stirred for 1 hour and then a solution of diethyl[3-bromo-7-(bromomethy)-2-naphthyl](difluoro)methylphosphonate (220 mg) in toluene (2 mL) was added dropwise. The reaction was stirred for 1 h at 0° C., quenched with a solution of saturated NH4Cl, extracted with EtOAc and dried over Na2SO4. The organic extracts were evaporated to dryness and the residue was purified by flash chromatography eluting with 50% EtOAc/hexanes to afford the titled compound.

Workup

  1. stirringThe reaction was stirred for 1 h at 0° C.
  2. customquenched with a solution of saturated NH4Cl
  3. extractionextracted with EtOAc
  4. dry with materialdried over Na2SO4
  5. customThe organic extracts were evaporated to dryness
  6. customthe residue was purified by flash chromatography
  7. washeluting with 50% EtOAc/hexanes

Sources & evidence

ORD record
ord-53110d3f8b4e4f60afd24dc3264549a1
Source dataset
uspto-grants-2013_07
Patent number
US08481742B2

Reaction notes

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